Lock



B. JQCOHON AND L. MOSKOWITZ. LOCK. APPLICATION FILED MA! 8, 1916.

PatntedSept. 7,1920.

2 SHEETSSHEET I.

WITNESSES: INVENTORS WITNESSES.

B. J. COHON AND L. MOSKOWITZ. LOCK.

APPLICATION FILED MAY a. 1916.

Patented Sept. 7, 1920.

2 SHEETSSHEET 2.

INVENTORS BENJAMIN J. COHON, or Wnrwoon,

PATENT OFFICE.

AND LOUIS MOSKOWITZ, OF BAYONNE, NEW

JERSEY.

LOCK.

- Application filed May 8,

To all whom it may concern Be itknown that we, BENJAMIN J. Co-

HON and LornsMosKowrrz, citizens of the -United States residin at Vestwood in the county-of Bergen and State of New Jersey, andBayonne, in the county of Hudson and State of New Jersey, respectively, have in vented certain new and useful Improvements in Locks, of which the following is a specification. v

Our invention relates toan improvement in looks; particularly locks of the type comprising a bolt, and mechanism for causing thebolt to be shot into engaging position with respect to a strike-plate, and be withdrawn from the same.

In our application for a patenton a lock; Serial Number 74,631, filed January 27, 1916, and allowed March 30, 1916, we have set forth a device comprising a bolt and a carrier therefor adapted to be actuated by camsin such a way as to prevent the return or. withdrawal of the parts, except by reverse movement of the cams. Thelock disclosed in this application is of similar construction; but is especially designed -to be secured to the inner side or face of a door.

rather than be mortised in the edge thereof; and it has its parts soshaped that they can be mounted on either right or left hand doors, in position to operate as desired.

iFurther, the carrier and bolt are positively actuated to be rn'oved to or fromloclring' position, with practically no lost motion,- after the'carrier and bolt once begin their forward or rearward eisplacement'; and

,when the bolt is even partially shot, it cannot be pushed backby means of a tool from ,without; or in any other way except-by giv ing reverse'm'ovement to the cams through a considerable arc of travel. 1 The above and other objects and advan tages of our invention will appear from the a following description, taken in connection with the accompanying drawings; and be precisely defined in the appended claims.

-But the disclosure herein is explanatory only, and thebasicprincipleof our invention may be embodied in other-constructions that are sim lar in effect, as indicated by V Specification of Letters Patent.

Patented Sept. 7, 1920.

1916. Serial No. 96,105.

acteristics of our improvement, as stated in the several claims, are expressed. On the drawings,

Figure 1 is a view showing our improved lock mounted on a door that is arranged to open in one direction;

Fig. 2 is a similar view, illustrating our lock in position to be applied to a door hinged so as to open by movement in a differen direction;

(Figs. 3, 4; and 5 are diagrammatic views showin the parts of our lock in various operative positions; 7

1 1g. 6 1s a transverse, vertical section taken through the mechanism and the inclosing casing of our lock; the plane of section being indicated by the line 6-6 on Fig. 3; the observer looking in the direction of the arrow;

Fig. 7 is a horizontal, longitudinal sectionalview of the mechanism of our lock,

taken on the line 7-r' of Fig. 1; and

Fig; 8 is a perspective of a strike plate constituting part of our invention.

- The same numerals of reference identify the same parts throughout.

To describe our lock, we shall first direct attention to Figs/1, 6, 7 and 8. On the views named, the numeral 1 indicates a portion of adoor frame and 2 a portion of a door, hinged to the frame lih the usual way. To the inside of the frame is secured a strike plate 3, which is in position to be engaged by an element, su'cfh as a bolt l. This bolt'is'mounte'd in a casing 5 fastened to the door on the inner side or face of the latter; that is, the side or face which is turned toward the interior of the room or dwelling .to which the door. is attached; This casing constitutes not only a housing, but also means for supporting the inecha nis'm by which the bolt iis operated. In Fig. 1, the door is shown as being hung so that it opens to the left; but in Fig. 2, the lock is shown in readiness to be applied to a door so arranged that it'opens to the right; and both these views illustrate the door as located between the casing 5 and the observer.. One side of the, casing 5 may be open; that is, not permanently closed; and

this side will be in direct contact with the door when the casing is fixed in place. This open side may be closed by a-removable plate, lying flat against the door; not shown.

. such as a cam 7; which is received in a central opening 8 of the carrier 6. .The carrier bears thelock bolt 4, which has portions constituting transverse'ribs 9 on both faces'to engage the front and rear ends of the car rier; and is provided with a central opening 10 to receive a controlling means, such .ias'a cam 11. The cams 7 and 11 arebotli rigid witha shaft 12, which is mounted in a bearing in the casing, and is somewhat flattenedat its inner end to be enabled to engage'the cams and turn them. one end 7 :the'bolt 1 is extended beyond the ribs 9 and the'carrier 6; providing a terminal portion. having a lateral projection 13. This terminal portion is movable longitudinally through an aperture 1 1 in the forwariil end of the casing and through a similar aperture 15, in the strike-plate alined with the aperture 1 1; and when the terminal portion 2 of the bolt has moved far enough to enable the p1O]9Ct1OIl 13 to clear the plate 3, it is operated to move transversely to cause the projection topass behind the lower edge of the opening 15'and secure thedoor iii-closed position. The form of the projection 13 is not material. "It may be shaped in almost 'any way seas to leave a space or recess between it and the forward ribs 9 or body of the bolt 4. g

.The shaft 12 may be provided with a knob on its end outside the casing 5 to be turned .ibya person inside the room or dwelling;

and the door may also carry on its outer side or face a suitable tumbler or cylinder lock construction, to be described later in full, operable to engage and turn the shaft when *the proper key is inserted.

Fig. 1 shows the position of the parts when the bolt is shot from the casing, and F ig. 3.1llustrates the lock when the operation of withdrawing the bolt has commenced.

:Fig. 4- shows the bolt retracted completely. If onetakes theseithree views in reverse order, the modeof operation of our lock will become plain. The earn 7, moving from the position shown in Fig. 1, first acts on the carrier to push it toward the opening 14;

and the cam and carrier together then serve asineans for actuating tlie'bolt to enable it to be moved translationally in one direction; that is, longitudinally of the casing. The

' -cam"11 at this time holds the bolt 4 against that is, I

movement with respect to the carrier till the in another direction; thatis, transversely of the carrier and the casing, as indicated in Fig. 3; so that the projection passes behind .the strike-plate and finally comes to rest, as

in Fig. 1. Fig. 5 omits the bolt, to show the I cam 7 and the carrier 6 more clearly in the positions given by Fig. 4. The open sideof the casing, which is presented to the observer in Fig. 1, is fitted with a removable plate 16; shown in'Figs. 6 and 7.; This plate closes the casing and lies against the door, as above stated. As clearly seen in most of the views, the carrier is as wide as the casing; so that only longitudinal movement of the carrier in the casing is permitted; all likelihood of transverse movement being eliminated. The opening 8 is substantially quadrant-shaped; with one edge almost straight and parallel with the rear edge of the carrier, and adjacent thereto; and with another edge located near the lower edge of the'carrier andextending forward. The edge of the opening 8 between the ends of these two edges is curved on the arc of a circle, whose center will be in the aXis of the shaft 12 when the carrier occupies the'positions shown in Figs. 1, 2, 3 and 7. The ribs 9 of the bolt 4 are spaced apart a distance slightly greater than the distance between the front and rear edges of the carrier; whereby the bolt cannot move longitudinally'of'the casing except in unison with the carrier; but can movetransversely thereof when the cam 11 has been revolved to a predetermined extent. The central opening 10 of the bolt 1 is elongated, terminating at the forward ribs 9; but does not extend as far back as the rear ribs 9.

I prefer'to make the cam 7 of the form shown, with a-rear edge 17 that is substantially straight or radial; and a forward edge 18 that is curved on the are of a circle having its center at the axis of the cam; and

. terminates in a nose 19, located between the extremities of the cam. The cam 11 is shaned like an equilateraltriangle with its sides curving outward slightly and its corners rounded. It is se ured to the shaft adjacent one corner; and its radially extending sides are indicated by the numeral 20 and the remaining side by the numeral 21; this side also being curved on the arc of a circle having the axis of the camas a center. In order to make these cams operate as required, they are mounted in such angular relation on the shaft 12 that the side 21 of the camll is spaced away from the edge 17 of the cam 7, and extends at anangle thereto; and-the rear rounded corner of the cam the observer in. Fig. 1 incicated 11 will be in proximity to the nose 19. Both cams have openings to receive the flattened inner end of the shaft 12.

W hen the'bolt is withdrawn, the cam 7 i 1l-and 15, but not protruding from the cas ing; while the bolt as awhole is held up near the top of the edge of the carrier by the cam 11, which will be located in the front end of the opening 10; near the adjacent ribs 9, with its edge 21 nearly horizontal. l he first movement of the shaft 12 impels the carrier and the bolt together toward the front of the casing, but the bolt is held against movement across the casing by the cam 11 till the cams have revolved about 90 degrees. Movement of the cams to this extent will thrust the carrier and the bolt to the extreme front of the casing, as indicated in Fig. 3. Further rotation then causes the curved edge 18 of the cam 7 to sweep along the inside of the circularly curved edge of the opening 8, without exerting any further force. on the, carrier 6.

Meanwhile the cam 11 moves its curved face 21 downwarc, away from the upper edge of the opening 10 in the bolt, with its outer corners engaging the bolt. Hence the bolt can be controlled to enable the projection 13 to move behind the plate 3, as depicted in The lock operates in this manner when applied to door that opens to the left as in Fig. 1. ll hen mounted on a door that opens to the right. it operates the same way. but

the parts mu. t first be re anged. By scrutinizing Figs. 1 and one can see that, to be able to fix the (as to the door shown 1 i1 I u in 2 so that the side of he casing with the door, the

sides 01 i and the carrier and the ca presented to by the the manner will pren3 indiated by the .1 be to the shaft iar relation as before;

lette t. ust S it forth. the parts 1 sent their opposite si The cams v same in ones so as to bring the projection 13 into line with tl c projections 1% and 15 must be e e Bed and will produce the sameresult when rotated'. As the carrier and the cams are flat, and as the bolt has transverse ribs 9 on both faces, the operation of adjusting the parts for a right hand door or a left hand door is simple and easy.

It is apparent from Fig. 1 that tie bolt 6 must go from left to right as i moves longitudinally of the casing when the latter is secured to a left hand door; but when the positions of the carrier, the bolt, and the cams are changed with respect to the casing so as to. adapt the lock to be applied to a right hand door as in Fig. 2; the bolt l, as it moves longitudinally in the casing travel in the opposite direction; that i l and o is set}, v

f i and has a i a 9s the plate beside the opening 14 extencs pro et on t 1e ends of which are oined L by tl e webs This tion fits against the fare of the frame 1, ano both the projection and the plate can be made fast by screws or the like. This strike plate is preferably in one piece, and can be used on either right or left h and doors by turning it about. When the bolt is shot through the plate 3, tne projection 13 becomes visible from the inside of the room or dwelling; whereby the occupant can see if the lock has been properly manipulated when the door is to be made It will now be seen, regardless of the kind is mounted. tiat of door on which the lock when the bolt is shot forth as in Figs. 1 and 2, the cam 11 contacts with the lower edge of the opening 10 dire 'tly below the shaft 12. Hence a for-7c applied to lift the be?" straight through the axis of the sh and no leverage whatever a i there is no possibility of the moved back by jimmy or otn tool. The cam 7 holds the carrier rearward movement in the same wav.

withc raw the bolt the I turned in the reverse d'rection, musing the cam 11 first to lift the bolt -it into position to make the projection 13 cle: r the lo e; edge of the opening 15 in th s rike-plat While this movement is being a cam 7 continues to hold he c r rearward movement even if 0. force from without be applied. by i the curved edge 18 engaging the curved part and prod 8 that is of the openin 1S, and therefore radial; axis of the shaft 12.

any position of the shown Fig. 1. anc t The carrier and. the bolt ar against l tudinalmo .1

U ted, ooeni tampering from the outside 1 possi le. Only by the i s moving back the ca through n the bolt 10 rear end of he casing, can the lock be opened.

The parti ular advantage of this action of the cam 7 resides not only in the fact that the carrier will prevent the bolt, after engaging the strike-plate with its projec tion 13, from being pushed back into the casing, should any one succeed in lifting the bolt with a tool far enough to enable the projection to clear the lower edges of the openings 14 111( 15; but also in the circumstance that the lock will efficiently hold the door if the shaft 12 is not turned far enough. That is to say, if, from any cause, both cams are not thrown over to the limit of their travel; so that, for example, they stop a little beyond the position shown in Fig. 3; the bolt will still engage the strikeplate in manner that will preclude the possibility of the door being opened again, except by turning back the shaft and returning the cams to the starting point. When the. bolt is shot, the nose 19 fits into a recess along the lower edge of the opening 8. i

It is also to be noted that, as soon as the movement of the carrier is commenced by the cams, all lost motion is eliminated. It is true that the shaft 12 may require to be rotated through a slight angle before the cam 7 can en age the curved forward edge of the opening 8, as indicated in Fig. 4; but once this angle is traversed, and the motion of the carrier and bolt toward the forward end of the casing is begun, the carrier and the bolt are positively controlled and actuated by the cams at every .point till their respective motions are completed. The fact that the shaft 12 may be turned to some extent before the carrier and the bolt can be set in motion is rather anadvantage because it makes a deliberate, intentional turn of the shaft necessary to start the lock into operation; and a slight, casual twist of the knob on the shaft 12 will not actuate the look. When the carrier and the bolt are retracted, they are positively controlled by the cams all the way back to starting position. Of course, the opening 8 may be soshaped that the cam 7 may contact with the carrier the instant the cam starts from its position in Fig. 41.

The shaft 12 is round except for its fiatt-ened inner end and extends through a hearing in the back of the casing; and the knob above mentioned is fast on its outer end and t is indicated in Figs. 6 and 7 by the numeral 25. This knob will be shaped so that it is substantially fiat on the side which is presented toward the casing; or it may be shaped in any other way that will enable the peripheral portions of that side to be no farther from the casing than the portions near to the axis or center of the knob. Between the knob and the casing is a sleeve 26, the outer end of which fits loosely into a groove 27 on the face of the knob presented to the casing; and the other end is fixed to the casing 5. In this case, the Sleeve serves as a bearing for the shaft; and, besides, it covers and protects the shaft and prevents access thereto between the knob and the casing. Thus this sleeve renders it impossible for any one boring through the door beside the casing to engage the shaft from the outside of the door; and turn the shaft by mechanical means. The groove 27 may of course be omitted, and the sleeve simply eatended up to the adjacent face of the knob. The same protective effect will be afforded if the sleeve is not fixed to the casing, but simply hangs loosely on the shaft; so long as it covers the whole of the shaftthat is outside of the casing 5. When the sleeve is fixed, as shown, the shaft 12 may have a circumferential groove 28 covered by the sleeve 26, to be engaged by a screw 29 in the sleeve 26. This screw will permit the shaft to turn freely, while pre venting axial displacement of the shaft, or its withdrawal from the casing.

The lock herein described can also be mounted on a door by cutting a mortise or recess in the edge thereof, and inserting the casing 5; thereby making the lock serve as a mortise lock. In this instance, adifferent form of strike-plate will be needed. The lock can also be employed on windows, desks, etc, as well as upon doors.

The casing, with the cams, the carrier, and the bolt can all be made by stamping; whereby the lock can be manufactured very cheaply; and assembled in very little time. lVe also make by stamping an arm 30, to be fixed on the shaft 12 in the casing, between the casing and the carrier, in position to be pressedupon by a spring 31, mounted on the back of the casing 5. This arm extends out from both sides of the shaft, and will be parallel to the line of movement of the be released before the bolt has completed its throw toward ortrom the strike-plate, vthe oressure of the s arin 31 acts on the arm-to from the outer side or face of means of an ordinary tumbler or cylinder 7 withdraw the bolt.

25 does not rotate the tongue.

turn the shaft far enough to insure the bolt l reaching the limit of .its movement in either the :torward or reverse direction. The arm and spring, however, are not essential parts of our invention, and both .may be omitted.

The lock will be'capa-ble of being opened the door 2, by

lock construction 32, shown in Figs. 6 and 1. This lock will be mounted in a hole in the door, and will have a tongue 33, polygonal in cross section, projecting into the one ing Theplate 16 of the casing will have a circular central opening receiving aubushing 3% in. line with the tongueBZ-l. This bushing will have a collar at its outer end, and be threaded at the other to receive a nut 35 plate 16 being between the collar and the nut; whereby the bushing will be held fast to the plate. The bore through the bushing will correspond. in shape to the cross section of the tongue We mount the bushing to turn freely in the plate; so that the tongue 33 may rotate the bushing. The nut above mentioned carries radial arm 36; and on the adjacent end of the shaft 12 is rigidly carried an arm 3?, having itsouter end bent over, as at 38, toward the plate 16. ll hen the proper lrey is inserted into the cylinder lock 82, the tongue can be. revolved to turn the arm 36 over to engage the end 38, of the arm 3'7, to shoot The cylinder loch. will be understood, comprises an inclosing case, containing a round body which is held fast by tumblers till the proper key is insorted, and then the round body in question can be rotated in the casing. This round body is rigid with the tongue; and, at its outer end this tongue will project into a round bore in the inner end of the'shalt 12. There is of course no connection between the inside of the shaft Bend the tongue 33; so that the,turning oi the shaft by the knob The lost motion connection between the arm'36 and the arm 37 permits the bolt 4 to be operated by the shaft 12 independently of the tumbler lock mechanism. 1

The arm 87 has such a form as to fit over the ,inner end ofthe shaft 12', as shown in Figs. 1 to 5 inclusive; and it may likewise be, made by stamping. Two small screws serve to hold the arm removably on the shaft. When the bolt and the carrier, with the cams, are to be turned over to fit a door opening in a different direction, the screws protect by Letters Patent are removed, the position otthe parts chan cd, as above desuibcd, and the arm again put on the shalt in the ame position with respect to the cams and the mg as reinserted. The cams M the arm 37 and be gripped by both;

' each screw will l 1511213053001 keeping the cams g t on the shaft 12. 4

inc casing will be held to the door by screws or bolt, through holes the co *ners of the or by any otl suitable ineans. Fr. long udinal edges of the carrier will engaged by 1.1 tile guise pro ections 39 adjacent the back or the cash to maintain the carrier in the plane of the cam T; and s ilar projections l0 on the inner face of the plate 16 will prevent the bolt .11 out i of the-cam 11.

cated in e bolt will be restricted, and

tl all risk or latern displacem nt toward the pla to 16 or the back of the casing obviated. The casing may so specially. shaped to provide the projections and d0; which will have the. form and location necessary to give the desired effect.

Having des ribed our invention, what we believe to be new and desire to secure and of the United States is -1. T he combination of an clement having a locking projection, means for actuating aid element to enab r cved trans ationally in one dii as for controlling said element to en: 0 translationally in another direction, and means for supporting said element, said actuating means and said controlling means in operative relation; said clement said actuating means said controlling means being so shaped that, upon the positions of the el ment, the actuating means and the controlling meansbeing changed with re spect to said supper-tine *neans, said element can be movedin a direction opposite to the one direction when the actuating means is operated, and in the same direction as the other direction when the controlling means is operated.

2. The combination of an element having a locking projection, means comprising a revoluble member tor actuating said element to enable it to be moved translationally in one direction, means for controlling said ele ment to enable it to be moved translationt to be moved ally in another direction, said controlling means preventing movement opposite to the last-named direction except upon reverse movement of, said controlling means, and said actuating means preventing movement of said element opposite to the first-named 7 direction, except upon reverse movement through a considerable arc of said revoluble member.

3. The combination of an element having a, locking projection, means comprising a revoluble member for actuating said element to enable it to be moved translationally in one direction, means for controlling said element to enable it to'be moved translationally in another direction, said means engaging said element so as to eliminate substantlally all lost motion between sald element and said means after said element 1s set into motion by said means, and means for V supporting the element and the actuating and controlling means.

4. In a locking mechanism, a bolt comprising a'terminal portion having a locking projection, said bolt being provided with a pair of parallel ribs on one face and a pair ofparallel ribs on the opposite face, and

. having an elongated opening therein between said ribs.

5. In a locking mechanlsm, the combination of a shaft, a cam having a circularly curved edge terminating-in a nose, on said shaft, and a trlangular cam on the shaft having one corner located adjacent said nose, and between the lateral edges of the cam bearing sald nose.

6. The combination of an element having a locking projection, a carrier therefor, said carrier having an opening with a circularly curved edge, a cam in said opening having a circularly curved edge adjacent its outer end to engagethe curved edgeof the opening to actuate the carrier, and'prevent the return thereof except upon reverse movement through a considerable arc of said cam, and 'means for moving the element with respect to the carrier.

. 7. In a locking mechanism, the combination OI a locking element, a shaft having means-for moving said element, an arm secured to the shaft to hold said means 1n operative position, and means for engagmg the arm to turn the shaft.

8. In a locking mechanism, the combination of a locking element, a shaft having i meansfor moving said element, an. arm

fitted upon the end'of the shaft, screws be-- tween the arm and the shaft to hold said arm and said means in operative position, and. means for engaging the arm to turn the shaft.

9. The combination of a casing, a locking ing.

May, 1916.

element therein, a shaft terminating within the casingv for moving said element, said shaft having a circular bore at its inner end, a bushing rotatably carried by the casing in line with the shaft and having a polygonal opening, and means providing a lost motion connection between the shaft andthe bush- 10. The combination of an element having a locking projection, means, comprising a carrier for the element, to actuate the latter to enable it to be moved translationally in one direction, means for controlling said element to enable it to be moved translationally in another direction; and means for supporting said element, said actuating means and said controlling means in operative relation; said element, said actuating means and'said controlling'means being so shaped that, upon the positions of the element, the actuating means, and the controlling means being changed with respect to the supporting means, said element can be moved in a direction opposite to the one direction when the actuating means is opersaid controlling means preventing movement opposite to the last-named direction except upon reverse movement of the controlling means, and said actuating means preventing movement of the element opposite to the first-named direction, except upon reverse movement through a considerable arc of said revoluble member.

12. The combination of an element having a locking projection, means comprising a carrier and a revoluble member for actuating said element to enable it to be moved translationally in one dlrection, means for controlling said element to enable it to be moved translationally in another direction, said means engaging said element so as to ellmlnate substantially all lost motion between said element and said means after said element is set into motion by said means, and means for supporting the ele-- ment and the actuating and controlling means.

In testimony whereof we have signed our names to' this specification this 5th BENJAMIN J. coHoN'. LOUIS MOSKOWITZ.

day of 

